Answer: B. Any cells of the human body or placenta.
Explanation:
All types of cells in the human body can develop from pluripotent stem cells. Embryonic stem cells are also considered pluripotent.
Answer:
C. a whale's flipper and a cat's leg
Explanation:
Homologous structures are the organs which have same basic anatomical structure but they perform different function based on the type of environment in which the organism is living. Two organisms which have homologous organs indicate that both the organisms are evolutionarily closely related to each other i.e. their ancestry is common. It is basically divergent evolution which is responsible for formation of homologous organs. If two closely related organisms are living in different environment then their organs which basically have same origin will tend to perform different functions as a part of adaptation. In contrast to this, analogous structures are the ones which perform similar function but anatomically they are very different and evolutionarily they are not closely related. Analogous structures are evolved as a result of convergent evolution which is meant for adaptation in a particular environment. So, even if two organisms are not closely related they still develop the structures which perform similar function so as to adapt into a particular environment.
Whales and cats both are mammals so they are closely related to each other but since they live in different environment, their organs which are anatomically similar perform different functions. Flippers in whales help in swimming while cat's leg help in walking. So, option C is correct answer.
All other options are examples of analogous organs.
A bird's wings and a butterfly's wings are perfect example of analogous organs. A bird is a vertebrate while a butterfly is an arthropod so evolutionarily they are very distantly related so their wings are also anatomically very dissimilar but they still perform similar function which help these two organisms in flying. So option A is incorrect. Similarly option D is also incorrect because wasp is an arthropod while dolphin is a vertebrate. Option B is also incorrect because catfish is a vertebrate and bee is an arthropod.
Answer:
Explanation:
human activities should no be more than the capacity of ecosystem
we should pay attention to carrying capacity of eco system
another one i don't no sorry for that
hope you like my answer and hope it helps you
Answer:b
Explanation:
It’s not technical correct, However for the sake of this question, it’s what they wnat u to put
Answer:
El término orgánulo se emplea para referirse a elementos o estructuras celulares que se encuentran en en el citoplasma de las células, cuyas funciones son bastante específicas, los cuales ha contribuido de manera considerable en el proceso evolutivo.
Ahora bien, dicho lo anterior y respondiendo de forma más concreta la pregunta, puede decirse entonces, que el citoplasma representa la parte de la célula que contiene los orgánulos, presentándose con mayor frecuencia en las células eucariotas debido a que poseen una forma determinada, caso contrario de las células procariotas.
Explanation:
